A Dorchester man was ordered held on $75,000 bail Monday morning for allegedly pretending to be a woman on a dating app and robbing men he set up dates with, prosecutors said.

Rakeem Austin, 30, used the names “Lizzy S’’ and “Candy B’’ in arranging the dates, Suffolk prosecutors said. He then robbed the men at gunpoint, ordering each one to the ground, they said.

“He stole items including cash, wallets, cellphones, and jewelry,’’ prosecutors said.

Austin was charged with nine counts of armed robbery, which took place from Oct. 2 to Nov. 10, prosecutors said. He was arraigned in Suffolk Superior Court.

“In the course of their investigation, Boston police detectives obtained account information of the dating app profiles for “Lizzy S’’ and “Candy B’’ that were used to communicate with the victims,’’ the statement said. “Both accounts listed a phone number that was also linked to Austin.’’

Prosecutors said Austin was wearing a GPS at the time of the robberies. He was out on bail in a case involving breaking and entering.

“GPS records placed Austin in the area of each of the armed robberies at the times they occurred,’’ Conley’s office said.

Austin was arrested Nov. 21 carrying a victim’s phone and the phone linked to the “Lizzy S’’ and “Candy B’’ accounts, prosecutors said.

J.D. Capelouto can be reached at jd.capelouto@globe.com.